I’m working on a new way to visualize eye-tracking data. Last year, I had a number of students watch a video while my camera recorded their eyes. After exporting the raw data, I wrote a custom script with Three.JS to plot the fixations in a 3d world.

The gif to the right shows my current version. Each person’s eye track is shown as a line. As time progresses, the lines shift/move with their eye fixations.

The major benefit of this approach is that we can zoom out and see aggregate behavior fairly clearly. While we can get a similar look with the bar chart I posted earlier in the year, this way does a better job of allowing you to compare the time dimension.

If you have a Google Cardboard, the current version will allow you to see the visualization in a 3d VR world.